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Doubting Gabriel 2/3 pale green enhancement"Place this card on a human hero. All enhancements on that hero are negated unless there is an angel in battle. Discard this card after five turns."
I might be wrong(in fact, I'm pretty sure there's a very good chance), but saying "enhancements ON that hero" seems like the wrong word choice. Unless that's what you want. Do you want to negate provisions, or all enhancements used by that hero? If you want to negate like provisions, then keep it. And I like the idea of orange as well.